Base station



FIG. 1 is a perspective view of front, top and right side of a base station showing our new design;

FIG. 2 is a perspective view of rear, top and left side thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in FIG. 4 are included for the purpose of illustrating unclaimed portions of the base station and form no part of the claimed design. 

CLAIM The ornamental design for a base station, as shown and described. 